<template>
  <div>
  <el-breadcrumb separator-class="el-icon-arrow-right">
    <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
    <el-breadcrumb-item>权限管理</el-breadcrumb-item>
    <el-breadcrumb-item>角色列表</el-breadcrumb-item>
  </el-breadcrumb>
  <el-card>
    <el-row>
      <el-col>
        <el-button type="primary">添加角色</el-button>
      </el-col>
    </el-row>
    <el-table
      :data="rolesList"
      border
      stripe
      style="width: 100%">
      <el-table-column type="expand">
        <template slot-scope="scope">
          <el-row :class="['bdbottom','vcenter',i1 == 0? 'bdtop':'']" v-for='(item1,i1) in scope.row.children' :key="item1.id">
            <el-col :span="5"><el-tag @close="removeRightById(scope.row,item1.id)" closable>{{item1.authName}}</el-tag><i class="el-icon-caret-right"></i></el-col>
            <el-col :span="19">
              <el-row :class="['vcenter', i2 == 0?'':'bdtop']" v-for="(item2,i2) in item1.children" :key="item2.id">
                  <el-col :span="6"><el-tag type="success" @close="removeRightById(scope.row,item2.id)" closable>{{item2.authName}}</el-tag><i class="el-icon-caret-right"></i></el-col>
                  <el-col :span="18">
                    <el-tag @close="removeRightById(scope.row,item3.id)" closable type="warning" v-for="item3 in item2.children" :key="item3.id">{{item3.authName}}</el-tag>
<!--                    <el-row :class="i3 == 0?'':'bdtop'" v-for="(item3,i3) in item2.children" :key="item3.id">-->
<!--                      <el-col><el-tag type="warning">{{item3.authName}}</el-tag></el-col>-->
<!--                    </el-row>-->
                  </el-col>
              </el-row>
            </el-col>
          </el-row>
        </template>
      </el-table-column>
      <el-table-column
        type="index">
      </el-table-column>
      <el-table-column
        property="roleName"
        label="角色名称"
      >
      </el-table-column>
      <el-table-column
        property="roleDesc"
        label="角色描述"
      >
      </el-table-column>
      <el-table-column
        label="操作"
        width="300px"
      >
        <template slot-scope="scope">
          <el-button size="mini" type="primary" icon="el-icon-edit">编辑</el-button>
          <el-button size="mini" type="danger" icon="el-icon-delete">删除</el-button>
          <el-button size="mini" type="warning" icon="el-icon-setting" @click="showPermissionTree(scope.row)">分配权限</el-button>
        </template>
      </el-table-column>
    </el-table>
  </el-card>
    <el-dialog
      title="提示"
      :visible.sync="showPermission"
      width="50%"
    >
      <el-tree :data="rightsTree" ref="permissionTree" :props="defaultProps" :default-checked-keys="checkedKeys"   show-checkbox node-key="id" :default-expand-all="true"></el-tree>
      <span slot="footer" class="dialog-footer">
        <el-button @click="showPermission = false">取 消</el-button>
        <el-button type="primary" @click="setPermission">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: 'Roles',
  data() {
    return {
      showPermission: false,
      roleId: undefined,
      rolesList: [],
      rightsTree: [],
      defaultProps: {
        children: 'children',
        label: 'authName'
      },
      checkedKeys: []
    }
  },
  methods: {
    async getRolesList() {
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        this.$message.error('获取角色列表失败')
      }
      this.rolesList = res.data
    },
    async removeRightById(role, rightId) {
      const confirm = await this.$confirm('确定要删除该权限吗?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirm !== 'confirm') {
        return this.$message.info('取消了删除')
      }
      const { data: res } = await this.$http.delete(`roles/${role.id}/rights/${rightId}`)
      if (res.meta.status !== 200) {
        return this.$message.error('删除权限失败')
      }
      role.children = res.data
    },
    async showPermissionTree(role) {
      this.roleId = role.id
      const { data: res } = await this.$http.get('rights/tree')
      if (res.meta.status !== 200) {
        this.$message.error('获取权限树失败')
      }
      this.rightsTree = res.data
      console.log(this.rightsTree)
      this.checkedKeys = []
      console.log('role', role)
      this.addCheckKeys(role, this.checkedKeys)
      console.log('this.checkedKeys', this.checkedKeys)
      this.showPermission = true
    },
    addCheckKeys(node, list) {
      if (!node.children) {
        list.push(node.id)
      } else {
        node.children.forEach(item => this.addCheckKeys(item, list))
      }
    },
    async setPermission() {
      const ids = [...this.$refs.permissionTree.getCheckedKeys(), ...this.$refs.permissionTree.getHalfCheckedKeys()]
      const idsStr = ids.join(',')
      const { data: res } = await this.$http.post(`roles/${this.roleId}/rights`, { rids: idsStr })
      if (res.meta.status !== 200) {
        this.$message.error('角色授权失败')
      } else {
        this.$message.success('角色授权成功')
        this.getRolesList()
        this.showPermission = false
      }
    }
  },
  created() {
    this.getRolesList()
  }
}
</script>

<style scoped>
  .el-tag {
    margin: 7px;
  }
  .bdtop {
    border-top: 1px solid #eee;
  }
  .bdbottom {
    border-bottom: 1px solid #eee;
  }
  .vcenter {
    display: flex;
    align-items: center;
  }

</style>
